Hello friends this is a very easy  automatic led on off emergency  light circuit. when light gone its automatically on and when light comes it will off and charge your battery slowly (100ma).

Automatic Emergency Led Light Circuit Diagram

automatic emergency led light circuit diagram

Parts List For Automatic Emergency Led Light Circuit Diagram

  •  Transistor 2n2222 1pc
  • LED 1 Watt 1pc
  • Diode IN4007 2pc
  • Resistor 2.2ohm, 1k 1/4watt
  • Battery 3.7 volt (18650 or any mobile battery)

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Emergency Light Circuit

 

5 volt capacitor power supply

  • Parts List for power supply
  • Diode IN4007 4pc, Zener diode 5 volt 1watt 1pc
  • Capacitor 100uf/16v , 105/400volt
  • Resistor 1mega 1/4watt

How To Make Automatic Emergency Led Light Circuit Watch The Video